ANS-C01 Network Security, Compliance and Governance Practice Question
A security engineer needs to capture and analyze network traffic between two EC2 instances in the same VPC for troubleshooting. The engineer wants to capture full packets and store them for later analysis. Which TWO AWS services can be used together to accomplish this? (Choose TWO.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Amazon S3
Options A (Amazon S3) and D (Traffic Mirroring) are correct. Traffic Mirroring captures full packets and sends them to a target, such as a Network Load Balancer or an EC2 instance, which can then store the captured traffic in Amazon S3. Option B (AWS Config) is incorrect because it tracks configuration changes, not network traffic. Option C (VPC Flow Logs) is incorrect because it captures only metadata (IP headers, ports, etc.), not full packets. Option E (Amazon CloudWatch Logs) is incorrect because it is designed for log storage and monitoring, not for storing full packet captures.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Amazon S3
Why this is correct
Can store the mirrored traffic for analysis.
- ✗
AWS Config
Why it's wrong here
Tracks configuration changes.
- ✗
VPC Flow Logs
Why it's wrong here
Captures metadata only.
- ✓
Traffic Mirroring
Why this is correct
Captures full packet content.
- ✗
Amazon CloudWatch Logs
Why it's wrong here
Not designed for packet storage.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the ANS-C01 exam.